Ultra Clean Holdings, Inc.
For the period ended Sep 25, 2026. Filed Oct 28, 2026.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Sep 25, 2026 · Filed Oct 28, 2026
UCTT$41.13+10.6%Stored close · as of Nov 6, 2026
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Item 6. Exhibits
(a)Exhibits
The following exhibits are filed with this Quarterly Report on Form 10-Q for the quarter ended September 25, 2026:
| ExhibitNumber | Description | Form | Exhibit | Filing Date | Filed Herewith |
|---|---|---|---|---|---|
| 10.1 | Sales Agreement, dated August 14, 2026, by and among Ultra Clean Holdings, Inc. and UBS Securities LLC, Barclays Capital Inc., Craig-Hallum Capital Group LLC and Oppenheimer & Co. Inc. | 8-K | 10.1 | August 14, 2026 | |
| 10.2† | Ultra Clean Holdings, Inc. Amended and Restated Stock Incentive Plan (amended and restated as of May 22, 2026) | S-8 | 99.1 | July 10, 2026 | |
| 10.3† | Employee Stock Purchase Plan (amended and restated as of May 22, 2026) | S-8 | 99.2 | July 10, 2026 | |
| 10.4† | Offer Letter between Ultra Clean Holdings, Inc. and Michael Keogh | 8-K | 10.1 | July 8, 2026 | |
| 10.5† | Transition and Garden Leave Agreement, dated August 4, 2026, between Ultra Clean Holdings, Inc. and Sheri Savage | 8-K | 10.1 | August 6, 2026 | |
| 31.1 | Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | X | |||
| 31.2 | Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | X | |||
| 32.1* | Certification of the Chief Executive Officer and the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. | X | |||
| 101.INS | Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. | ||||
| 101.SCH | Inline XBRL Taxonomy Extension Schema Document | ||||
| 101.CAL | Inline XBRL Taxonomy Calculation Linkbase Document | ||||
| 101.DEF | Inline XBRL Taxonomy Definition Linkbase Document | ||||
| 101.LAB | Inline XBRL Taxonomy Label Linkbase Document | ||||
| 101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase Document | ||||
| 104 | Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101) | ||||
† Denotes management contract or compensatory plan.
- The certifications furnished in Exhibit 32.1 hereto are deemed to accompany this Quarterly Report on Form 10-Q and will not be deemed “filed” or purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and are not to be incorporated by reference into any of Ultra Clean Holdings, Inc.’s filings under the Securities Act of 1933, as amended, irrespective of any general incorporation language contained in such filing.
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